// Copyright 2024 The XLS Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import float32;

pub fn double_fraction_carry(f: float32::F32) -> (uN[float32::F32_FRACTION_SZ], u1) {
    let f = f.fraction as uN[float32::F32_FRACTION_SZ + u32:1];
    let f_x2 = f + f;
    (f_x2[0+:float32::F32_FRACTION_SZ], f_x2[float32::F32_FRACTION_SZ+:u1])
}
